      {:q 14, :r 3, :terrain-type :plains}
      {:q 15, :r 3, :terrain-type :plains}
      {:q 16, :r 3, :terrain-type :ford}
+     {:q 17, :r 3, :terrain-type :shallow-water}
      {:q 18, :r 3, :terrain-type :shallow-water}
      {:q 19, :r 3, :terrain-type :deep-water}
      {:q 20, :r 3, :terrain-type :deep-water}

     {:q 15, :r 15, :terrain-type :woods}
     {:q 16, :r 15, :terrain-type :plains}
     {:q 17, :r 15, :terrain-type :plains}
     {:q 19, :r 15, :terrain-type :deep-water}
     {:q 20, :r 15, :terrain-type :deep-water}
     {:q 21, :r 15, :terrain-type :deep-water}

     {:q 15, :r 16, :terrain-type :woods}
     {:q 16, :r 16, :terrain-type :plains}
     {:q 17, :r 16, :terrain-type :plains}
     {:q 18, :r 16, :terrain-type :plains}
     {:q 19, :r 16, :terrain-type :shallow-water}
     {:q 20, :r 16, :terrain-type :deep-water}
     {:q 21, :r 16, :terrain-type :deep-water}
